TROUBLESHOOTING
If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages.
If problems persist, read the following troubleshooting tips which may help eliminate the problems.
Amplier will not power up
Check to make sure you have a good ground connection.
Check that there is at least 12v on the battery (+) terminal
Check that the Remote Input (Turn-On) has at least 10VDC.
Check that the green power LED is lit
Check all fuse, replace if necessary.
Make sure that the Protection LED is not illuminated. If it is lit, shut off the amplier briey, and then Power Cycle (reset).
Protection LED comes on when
amplier is powered up
Turn down the volume control on the head unit to prevent overdriving the input speaker leads,
Try Power cycling (reset) the amplier. If the Protection LED still comes on, then the amplier is faulty and needs servicing
No output
Check that all fuses are OK.
Check that the power light in on
Check that unit is properly grounded.
Check that the Remote Input (Turn-On) has at least 10VDC.
Check that the input signal connections are plugged in properly.
Low output
Readjust the Input Gain Control. Check the Crossover Control settings, possibly try a higher frequency.
High hiss in the sound
Disconnect all RCA inputs to the power sub’s control panel. If the hiss disappears, then plug in the component driving the amplier and
unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.
Reset Input Gain. It is best to set the subwoofers input level control as low as possible. The best subjective signal-to-noise ratio is achieved
in this manner. Try to set the head unit as high as possible (without distortion) and the subwoofer input level as low as possible.
Squealing noise is present
Check for improperly grounded RCA interconnects. Or possible “blown” signal ground from headunit. (Some headunits are notorious for this!)
Distorted sound
Check that the Input Gain control is set to match the signal level of the head unit. Always try to set the Input Gain on the subwoofer as low
possible. Input gain is NOT power output!! Check that all crossover frequencies are properly set.
Amplier gets very hot
Readjust the Input Gain Control. Make sure to NOT use CCA power wire as it will cause these issues
Engine noise (static type)
This is usually caused by poor quality RCA cables, which can pick up radiated noise. Use only the best quality cables, and route them
away from power cables.
Engine noise (alternator whine)
Check that the RCA grounds are not shorted to the vehicle chassis. Check that the head unit is properly grounded.
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